<template>
  <view>
    <!-- 搜索组件 -->
    <view class="search-box">
      <my-search @click="gotoSearch"></my-search>
    </view>
    <!-- 轮播图的区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item, i) in swiperList" :key="i">
        <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id">
          <image :src="item.image_src"></image>
        </navigator>
      </swiper-item>
    </swiper>
    
    <!-- 分类导航区域 -->
    <view class="nav-list">
      <view class="nav-item" v-for="(item,i) in navList" :key="i" @click="navClickHandle(item)">
        <image :src="item.image_src" class="nav-img"></image>
      </view>
    </view>
    
    <!-- 楼层区域 -->
    <!-- 楼层的容器 -->
    <view class="floor-list">
      <!-- 每一个楼层的item项 -->
      <view class="floor-item" v-for="(item,i) in floorList" :key="i" >
        <!-- 楼层的标题 -->
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!-- 楼层图片区域 -->
        <view class="floor-img-box">
          <!-- 左侧大图片的盒子 -->
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <image :src="item.product_list[0].image_src" :style="{width:item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
          </navigator>
          <!-- 右侧4个小图片的盒子 -->
          <view class="right_img-box">
            <navigator class="rigth-img-item" v-for="(item2,i2) in item.product_list" :key="i2" :url="item2.url">
              <image :src="item2.image_src" mode="widthFix" :style="{width:item2.image_width + 'rpx'}" v-if="i2 !== 0"></image>
            </navigator>
            
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  import { getCurrentInstance } from 'vue'
  import badgeMix from '@/mixins/tabbar-badge.js'
  export default {
     mixins: [badgeMix],
    data() {
      return {
        //这是轮播图的数据列表
          swiperList: [],
        //分类导航的数据列表
          navList: [],
        //楼层的数据
        floorList: []
      };
    },
    onLoad() {
      //调用方法，获取轮播图数据
      this.getSwiperList()
      this.getNavList()
      this.getFloorList()
    },
    methods: {
      async getSwiperList() {
          const {data: res} = await uni.$http.get('https://api-hmugo-web.itheima.net/api/public/v1/home/swiperdata')
          //请求失败
          if(res.meta.status !== 200) return uni.$showMsg()
          //请求成功
          this.swiperList = res.message
      },
      async getNavList() {
      const {data: res} = await uni.$http.get('https://api-hmugo-web.itheima.net/api/public/v1/home/catitems')
       if(res.meta.status !== 200) return uni.$showMsg()
       this.navList = res.message
       
      },
      navClickHandle(item) {
        if(item.name === '分类') {
          uni.switchTab({
            url: '/pages/cate/cate'
          })
        }
      },
      //获取楼层首页数据的方法
      async getFloorList() {
        const {data: res} = await uni.$http.get('https://api-hmugo-web.itheima.net/api/public/v1/home/floordata')
        if(res.meta.status !== 200) return uni.$showMsg()
        
        //通过双层 forEach 循环,处理 URL 地址
        res.message.forEach(floor => {
    floor.product_list.forEach(prod => {
      prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
    })
  })
        
        this.floorList = res.message
      },
      
      gotoSearch() {
        uni.navigateTo({
          url: '/subpkg/search/search'
        })
      }
    }
    
  }
</script>

<style lang="scss">
 swiper {
  height: 330rpx;
  .swiper-item,
  image {
    width: 100%;
    height: 100%;
  }
 }
 .nav-list {
   display: flex;
   justify-content: space-around;
   margin: 15px 0;
   
   .nav-img {
     width: 128rpx;
     height: 140rpx;
   }
 }
  .floor-title {
    width: 100%;
    height: 60rpx;
  }
  .right_img-box {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;  //分散对齐
  }
  .floor-img-box {
    display: flex;
    padding-left: 10rpx;
  }
  .search-box {
    position: sticky;
    top: 0;
    z-index:999;
  }
</style>
